EP2490084A1 - Datumsmechanismus - Google Patents

Datumsmechanismus Download PDF

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Publication number
EP2490084A1
EP2490084A1 EP11154850A EP11154850A EP2490084A1 EP 2490084 A1 EP2490084 A1 EP 2490084A1 EP 11154850 A EP11154850 A EP 11154850A EP 11154850 A EP11154850 A EP 11154850A EP 2490084 A1 EP2490084 A1 EP 2490084A1
Authority
EP
European Patent Office
Prior art keywords
wheel
indexing
calendar
gear
daily
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP11154850A
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English (en)
French (fr)
Other versions
EP2490084B1 (de
Inventor
Peter Schmidt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Glashuetter Uhrenbetrieb GmbH
Original Assignee
Glashuetter Uhrenbetrieb GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Glashuetter Uhrenbetrieb GmbH filed Critical Glashuetter Uhrenbetrieb GmbH
Priority to CH00274/11A priority Critical patent/CH704505A2/fr
Priority to EP11154850.9A priority patent/EP2490084B1/de
Priority to US13/396,994 priority patent/US8842500B2/en
Priority to KR1020120015807A priority patent/KR101369081B1/ko
Priority to RU2012105510/12A priority patent/RU2590875C2/ru
Priority to CN201210037675.4A priority patent/CN102645884B/zh
Priority to JP2012032531A priority patent/JP5559828B2/ja
Publication of EP2490084A1 publication Critical patent/EP2490084A1/de
Priority to HK13101751.2A priority patent/HK1174979A1/xx
Application granted granted Critical
Publication of EP2490084B1 publication Critical patent/EP2490084B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
    • G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
    • G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
    • G04B19/253—Driving or releasing mechanisms
    • G04B19/25333—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement
    • G04B19/25353—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by the clockwork movement
    • G04B19/2536—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by the clockwork movement automatically corrected at the end of months having less than 31 days
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
    • G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
    • G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
    • G04B19/253—Driving or releasing mechanisms

Definitions

  • the present invention relates to a calendar mechanism, and more particularly to a perpetual calendar mechanism.
  • the usual perpetual calendar mechanisms use cams of 12 or 48, depending on whether the latter performs one revolution respectively every year or every 4 years, with notches of different depths for months having less than 31 days.
  • the February notch also contains a Maltese cross indexed every year and which determines a lower depth for leap years.
  • On the cams used in these date display mechanisms acts the beak of a lever, recalled by a spring, to determine the advance of the date indicator at the end of the month depending on the depth in which the latter is engaged.
  • this cam system only makes it possible to synchronize a date wheel and the basic movement in a given direction, such as so that the date values can only be incremented and not decremented during a time setting operation.
  • the solution disclosed in the document CH680630 proposes for example a perpetual calendar mechanism comprising a program wheel driven by protruding teeth of a 24-hour wheel, and on which is arranged a gear train so that it is always driven by the number of steps corresponding to differential between the number of days of the month and 31.
  • This mechanism is devoid of any lever, rocker and spring with the exception of a jumper for indexing the date wheel; however, the gear system is very complex with many satellite wheels, provided with long teeth for catching indexing, and arranged eccentrically on the program wheel, and each dedicated to a particular correction.
  • the gear system is very complex with many satellite wheels, provided with long teeth for catching indexing, and arranged eccentrically on the program wheel, and each dedicated to a particular correction.
  • the document EP1351104 offers an alternative to the previous solution, aimed at reducing the number of components on the program wheel.
  • the disclosed calendar mechanism proposes for this purpose a program wheel provided with movable elements with retractable teeth, sliding between active and inactive positions.
  • This device effectively reduces the overall thickness of the program wheel; however, the sliding movable elements have very particular shapes and must be placed precisely between abutments and shoulders of complex geometric shapes.
  • the control device still comprises many satellite wheels with teeth of unequal length acting as cam surfaces on the sliding elements. Thus both the reliability of the gear is questioned and the wear of the various parts of the control device is accentuated because of the many guide surfaces for the sliding elements.
  • An object of the present invention is to provide an alternative solution, of simplified construction, to the usual calendar mechanisms, the time adjustment and date can be synchronized in both directions.
  • Another object of the present invention is to provide a solution that minimizes the energy losses during the various indexing operations, and in particular the catch-up indexing at the end of the months of less than 31 days.
  • a calendar mechanism comprising a calendar program wheel 13 driven by a clockwork movement and actuating a gear train for the date display (16-24), the program wheel 13 comprising a moving wheel.
  • An advantage of the proposed solution is to require only a reduced number of elements for the program wheel and simple geometric pieces for retractable teeth.
  • Another advantage of the proposed solution is to guarantee a better gear safety thanks to a reliable positioning of the retractable teeth, deep and each conditioned by a single degree of freedom in rotation.
  • An additional advantage of the proposed solution is improved durability due to limited wear for each retractable tooth during respective indexing operations.
  • Another advantage of the proposed solution is to be able to change each retrofit, for the automatic indexing of the date in months of less than 31 days, in a modular way, gear plane by gear plane.
  • the gearing finger of the 24-hour wheel 6 is preferably arranged as an element coaxial with the 24-hour wheel 2 but not integrally rotatably connected to this 24-hour wheel 2, so that the adjustment of the day of the week can be done independently of the calendar mechanism and the time of the day.
  • this gear pin 6 on a gear wheel gives a degree of freedom in rotation between a first stop 6 ', against which the pin of the wheel 24 hours 5 is placed when the wheel 24 hours turns counter-clockwise (that is to say when the hour wheel 1 rotates clockwise during normal operation of the watch), and a second stop 6 ", against which would be placed the pin of the 24-hour wheel 5 if the 24-hour wheel turned in the opposite direction.
  • the magnitude of this degree of freedom preferably corresponding to an angular sector of 20 to 30 degrees, is determined in such a way that it is possible to rotate the star of the weekdays 7, for example clockwise for the embodiment illustrated by the Figure 2B without disturbing the normal operation of the hour wheel 1 even if the gear pin of the 24 hour wheel 6 is in a geared position with teeth of the star of the weekdays 7, for example in the sector located between about 10 and 11 o'clock of the 24-hour wheel indicated previously on the Figure 2B for the preferred embodiment described.
  • the setting of the day of the week is effected by means of a manual actuator 10 arranged on the housing 0.
  • the manual actuator for the adjustment of the weekdays 10 is a pusher on which one acts by successive pressures, at most 6 to reach the desired day.
  • the adjustment mechanism 9, which makes it possible to transmit the pulses of the pusher to the star of the weekdays 7, has not been represented on the Figure 2B for questions of readability; such mechanisms are, however, known to those skilled in the art.
  • the Figures 3A and 3B respectively show a sectional view from above of the drive train for displaying the date from the movement.
  • the figure 3B shows in particular the position of this wheel relative to the housing 0, and the manual correction actuators 10, 26 and 48, respectively for the day of the week, as explained above in view of the Figures 2A and 2B , the date, and the month.
  • the figure 3B will explain in particular the operation of the mechanism for setting the date values.
  • the hour wheel of the movement 1 meshes with a wheel 24 hours 2, comprising a number of teeth twice higher.
  • a daily gear segment 11 which here comprises 7 teeth spaced 15 degrees, so that the passage from one tooth to the other takes place every hour.
  • This daily gear segment of the 24-hour wheel 11 meshes with a first plane A, indicated on the figure 3A and better visible on the figure 3B , with a calendar daily indexing wheel 12, which comprises 8 teeth in this gear plane.
  • the 24-hour wheel causes the calendar daily indexing wheel 12 to turn one full circle during the gearing with the 7 teeth of the gear segment 11, that is to say in the first gear. 8 hours.
  • the calendar daily indexing wheel 12 does not mesh with the toothed gear segment 11, it is otherwise in abutment against a toothless segment of the 24-hour wheel, referenced 11 'on the figure 3B , and thus maintained in position.
  • the gear segment of the 24-hour wheel 11 and the daily calendar indexing wheel 12 are thus preferably arranged so that the latter performs a complete rotation between 18 hours and 2 hours in the morning each day, the indexing with the program wheel of the dates 13 occurring between 20 hours and midnight.
  • the daily calendar indexing wheel 12 has a plurality of teeth 28, 29, 30, 31 distributed over different gear planes B, C, D, E. These teeth are also consecutive and therefore potentially mesh every hour with the calendar wheel of the calendar 13.
  • the figure 3B shows the gear plane D of tooth 31, the third from the top on the figure 3A , which is performed with the daily indexing mobile 13 'of the calendar program wheel 13.
  • the tooth 31 is preferably arranged to mesh between 23h and midnight with a corresponding tooth 131 of the daily indexing mobile 13'.
  • this tooth is never the same each day and corresponds each time to another tooth of the teeth of the daily indexing mobile 13 ', having an external toothing homogeneous of 31 teeth (that is to say the height of each tooth and the spacing between each of them is identical) since it is defined only relative to the tooth 31 of the daily indexing wheel of calendar 12.
  • the other teeth 28, 29, 30 of the calendar daily indexing wheel 12 are intended to make up for the months of less than 31 days in collaboration with corresponding pivoting retractable teeth 128, 129, 130 arranged on the program wheel.
  • the first indexing tooth 29 of the calendar daily indexing wheel 12 thus meshes with a first pivotable pivotable tooth 129, whose axis of rotation is integral with the daily indexing wheel 13 ', in a first plane of rotation.
  • gear B located just below the gear plane A on the figure 3A For indexing the 29th to the 30th day in every month of February.
  • the gearing takes place only when the pivoting tooth is in the so-called "active" position, that is to say that it is capable of being driven by the corresponding indexing tooth of the daily indexing wheel. 12.
  • each of the pivotable retractable teeth 128, 129, 130 are illustrated by the various sequences of the figure 6 , described later; in this case, each of the pivoting retractable teeth 128, 129, 130 are preferably superimposed on the external toothing of the daily indexing wheel 13 'in their respective gear planes B, C, E.
  • these pivoting teeth 128, 129, 130 are shown in inactive position, respectively 1281, 129l, 130l, during the month of March, which requires no catch-up since it contains 31 days.
  • the second indexing tooth 30 of the calendar daily indexing wheel 12 may similarly mesh with a second retractable tooth 130 pivot whose axis of rotation is integral with daily indexing mobile 13 ', when the latter is in active position 130A, for indexing the 30 th to 31 th day of the months of less than 31 days.
  • the gearing takes place in a second gear plane C, located just below the previous gear plane B on the figure 3A .
  • a third indexing tooth 28 of the calendar daily indexing wheel 12 meshes with a third pivoting pivotable tooth 128, whose axis of rotation is also integral with the daily indexing mobile 13 'when the latter is in position. active position 128A for indexing the 28th to the 29th day in February for leap years. According to the preferred embodiment illustrated, this gearing takes place in a third gear plane E, situated just below the gear plane D previously described.
  • the first, second, third and fourth gear planes are arranged in the order (B, C, D, E) from said gear plane A of said calendar daily indexing wheel 12 with said gear segment.
  • Such an arrangement is advantageous because of the overlapping of the camming surfaces of the program wheel of the months 43 in the planes B and C, which makes it easy to facilitate the correct assembly of each of the parts.
  • This cam of the months 44 defines a camming surface for the months of less than 31 days 441, at which it will perform the indexing of the 30 th to 31 th calendar, preferably between 22 and 23h according to the preferred embodiment illustrated.
  • This month cam 44 preferably also comprises a cam surface for February 442, at which it will perform the indexing of the 29 th to 30 th calendar, preferably between 21 and 22h according to the preferred embodiment illustrated.
  • the camming surface of February controls the active or inactive position of the pivoting retractable tooth 129 in the gear plane B.
  • the cam surfaces 441, 442 of the cam of the months 44 are divided into twelve sectors, visible on the figure 3B but referenced in detail only on the Figures 6A and 6B described below.
  • Each of the sectors of the cam surfaces corresponds to one month of the calendar year, and the cam of the months 44 is arranged in solidarity with a program mobile of the months 43, indexed at the end of each month of a twelfth of a revolution, c that is, to change the value of the month.
  • the control wheel for this indexing is described later using the Figures 4A and 4B .
  • a gear plane F corresponding to that of an intermediate control wheel of the months 42 with the program mobile of the months 43 can be observed, as well as the presence of a fixed indexing finger for the leap years 47, conventionally arranged on a fixed wheel 47 ', visible for example on Figures 6A and 6B .
  • This indexing finger of the leap years 47 allows a Maltese cross 46 ', better visible on the figure 6 , to perform a quarter turn in each year, during which the motive of program of the months 43 of which it is solidary carries out a complete rotation.
  • the Maltese cross 46 ' which meshes with an additional gear plane not referenced in the figures with the indexing finger of the leap years 47 is integral with a cam of the leap years 46, whose cam surface 461 (visible only on the figure 6 ) is similar in the gear plane E to the cam surface 442 for the month of February.
  • This cam thus makes it possible to advance the value of the date from 28 to 29 for non-leap years during the evening of February 28, preferably between 8 pm and 9 pm according to the preferred embodiment illustrated.
  • the daily indexing mobile 13 meshes, by means of an intermediate wheel of the dates 15 arranged coaxially but free in rotation with respect to the intermediate control wheel of the months 42, with a date wheel 16 also provided with 31 teeth, such as the daily indexing mobile 13 '.
  • the intermediate date wheel 15 is only a reference for all the indexing movements on the calendar program wheel 13, which are integrally replicated on the date wheel 16; conversely, all the rotational movements of the date wheel 16, during adjustment with the aid of the manual actuator 26 described below, are integrally replicated to the daily indexing mobile 13 ', which forms the frame of the wheel of date program 13, and on which are still mounted the pivoting retractable teeth 128, 129, 130, which each respectively comprise a pin 1281, 1291, 1301 whose function will be explained later with the help of Figures 6A and 6B .
  • the program wheels of the dates and dates 16 and the calendars 16 can be arranged coaxially.
  • the dissociation of the program wheels 13 and the calendars 16 makes it possible to functionally isolate the block formed by the calendar program wheel 13, dedicated to the gearing with the movement for the automatic correction of the calendars. for the months of less than 31 days, that formed by the date wheels 16, units 17 and tens 18, mutually coaxial and integral in rotation, which are dedicated to the gearing with the display mobiles, as per example those illustrated in Figure 1C.
  • the unit wheel 17 is divided into 31 equal angular sectors on which are placed 30 teeth and a toothless sector.
  • the unit wheel 17 drives a mobile operating a display disk units 19 every day of the month, except one.
  • the display units disc 20, integral with the actuation of the mobile display units disc 19 is indexed every day from a unit, except when switching on the 31st of the month to the first of the following month where only the tens display disc 23 is incremented.
  • the actuating wheel of the display disk of the units 19 comprises 10 teeth and is indexed in steps of one-tenth of a revolution thanks to the elastic indexing element of the disk of the units 24, which is inserted between two consecutive teeth. .
  • the tens display disk 23 is secured to an actuating wheel, that is to say the operating wheel of the display disk of the tens 22, which has the shape of a cross at 4 branches and is indexed a quarter turn during passage of the 9th to the 10th calendar of 19 th to 20 th calendar, the 29th 30 e calendar, and 31 to 1 calendar.
  • an actuating wheel that is to say the operating wheel of the display disk of the tens 22, which has the shape of a cross at 4 branches and is indexed a quarter turn during passage of the 9th to the 10th calendar of 19 th to 20 th calendar, the 29th 30 e calendar, and 31 to 1 calendar.
  • the jump of a quarter turn is guaranteed by the elastic indexing element of the display disc tens 24, which is inserted between two adjacent arms of the cross; and the indexing during these date values is guaranteed by long teeth arranged on the tens wheel 18, which is also divided into 31 sectors but comprises only 4 long teeth, 3 of which are arranged at 9 sectors of intervals and the 4 th consecutive to 3 for the passage of e calendar 31 to the first of the following month.
  • the gear train for displaying the date composed of the elements referenced 16 to 24 from the date wheel 16 to the display discs of the units 20 and tens 23, is visible partially on each of the FIGS. 3A, 3B, and 3C : the figure 3A shows the entirety of the gear train except the indexing elastic indexing elements 21, and 24 of each actuating wheel 19 and 22 respectively associated with the display disk of the units and the tens 20 and 23, the figure 3B shows a gear plane located below these display disks units 20 and tens 23, which are therefore only visible on the figure 3C .
  • the date is set by means of the manual actuator 26 arranged on the housing 0.
  • the manual actuator 26 for setting the date is a pusher on which one acts by successive pressures, at most 30 to reach the desired day.
  • the adjustment mechanism 25, which makes it possible to transmit the pulses of the pusher to the mobile of the dates 16, has not been represented on the figure 3B for questions of readability; such mechanisms are, however, known to those skilled in the art.
  • a rod could be used instead of a pusher as a manual actuator 26, in which case the rotation of the rod could cause the mobile of the calendars 16 to rotate in both directions with an adjusting mechanism. appropriate week days 26.
  • FIGS. 4A and 4B illustrate sectional and respectively top views of the calendar mechanism according to a preferred embodiment of the invention, wherein the control wheels are described for positioning the program wheel of the months 43 in order to position the pivoting retractable teeth adequately, and than the workings to display months and leap years.
  • the control wheels are described for positioning the program wheel of the months 43 in order to position the pivoting retractable teeth adequately, and than the workings to display months and leap years.
  • the manual actuators 10, 26 and 48 arranged on the housing 0; we will see later how the setting of the months is done through the manual actuator 48.
  • a mobile on which is arranged a monthly indexing tooth 32 visible on the Figure 4B .
  • This monthly indexing tooth 32 meshes with a monthly indexing mobile 33 of 8 teeth, integral in rotation with a month control wheel 41 of 32 teeth, which meshes in a gear plane F with the intermediate wheel of control of the months 42, coaxial but not integral in rotation with the intermediate wheel of the dates 15, and which in turn meshes with the program mobile months 43 of 48 teeth, integral in rotation with the cam of the months 44 visible on the Figure 4B .
  • the monthly indexing wheel 33 performs exactly 1/8 of a turn each month thanks to the indexing elastic element 34 which is inserted between two of its consecutive teeth; the gear ratio between the number of the monthly indexing mobile 33 and the program mobile of the months 43 allows to index it by exactly 1/12 turn every month.
  • the monthly indexing wheel 33 also meshes with a monthly indexing intermediate wheel 35 of 23 teeth, which in turn meshes with an actuating wheel for displaying the months 36 of 12 teeth.
  • the gear ratio of 8/12 between the monthly indexing wheel 33 and the operating wheel for displaying the months 36 ensures that the latter performs exactly one twelfth of a turn at the end of each month.
  • the actuating wheel months 36 is integral in rotation with an annual indexing tooth 37, which is placed on a mobile performing a complete rotation each year.
  • This annual indexing tooth 37 meshes with a leap year actuating wheel 38, provided with 8 teeth, which is moved by 2 teeth, ie 90 degrees during each gearing with the annual indexing tooth 37.
  • the actuation of the leap years 38 is integral in rotation with an intermediate wheel of the leap years 39, provided with 39 teeth and which meshes with a display wheel leap years 40, also comprising 39 teeth, mounted coaxial with the actuating mobile months 36 of such that the months and leap years indicators, typically needles pointing on concentric rings arranged on the dial of a watch, can be arranged rotating around the same barrel to improve the reading comfort of the user.
  • the program mobile of the months 43 is integral with the cam of the months 44 which includes a first cam surface for the months of less than 31 days 441, visible on the Figure 4B and corresponding to the gear plane C, visible on the Figure 4A .
  • This cam surface makes it possible to index the value of the date from 30 to 31.
  • the cam of the months 44 also includes a cam surface 442 in the gear plane B for the correction of the months February, that is to say making it possible to pass the date from 29 to 30.
  • the so-called leap year cam 46 mounted in solidarity with the program mobile of the months 43 and visible on the Figure 4A , allows to spend the date of 28 to 29 when the year is not leap by acting on the pivoting retractable tooth in the gear plane E, located just above the gear plane F.
  • the program mobile of month 43 is therefore intended to determine the active position 128A, 129A, 130A or inactive 128l, 129l, 130l of each of the retractable teeth 128, 129, 130 when a retrofit is necessary, that is to say during month of 30 days and months of February.
  • the cam surfaces on each gear plane B, C, E must be arranged in such a way that each pivoting retractable tooth situated in this plane is in the active position for the catch-up for which they are respectively provided. that is to say 29 to 30 in the plane B, 30 to 31 in the plane C, and 28 to 29 in the plane E, and in the inactive position otherwise.
  • the cam surfaces are divided into twelve sectors each corresponding to one month of the year.
  • the program wheel of the months 43 integral in rotation with the cam of the months 44 acting on the pivoting retractable teeth 128, 129, 130 in the different gear planes B, C, E, must be synchronized to the values of months displayed and indexed each time the date goes from 31 to 01 and vice versa; this is the reason why the drive train, formed according to the preferred embodiment illustrated by the elements 15, 16, 32, 33, 41, and 42 allows feedback from the mobile indexing daily 13 'to the program wheel months.
  • the daily indexing mobile 13 'performs at least 1/31 th of a turn each day (ie 1/31 th for normal days, whereas for the last days of month less than 31 days, it performs the additional catch-up required one or more 1/31 of a turn for the months of 30 days and February) to index-month program of the mobile 43 of a twelfth round at the end of each month in at the same time as the months display actuating wheel 36 is also indexed by 1/12 th of a turn.
  • the control wheel of the program wheel months, formed elements referenced 15, 16, 32, 33, 41, 42 consists of a first kinematic chain from the mobile d daily indexing 13 'to the date mobile 16, which forms the first element of the date display gear train (16-24), via the intermediate date wheel 15, while a second kinematic chain starts from the date mobile. 16 and the monthly indexing tooth 32 to return to the program mobile of months 43, arranged coaxial but independent in rotation of the daily indexing mobile 13 ', via the monthly indexing mobile 33 and the wheel control of the months 41, integral in rotation, and the intermediate control wheel of the months 42.
  • the intermediate mobiles 15 and 42 that is to say the intermediate wheel of the dates 15 and the intermediate wheel control area of the months 42 are arranged as a single intermediate wheel comprising two coaxial mobiles and independent in rotation, to save the maximum space on the plate, for example for other timepieces.
  • the intermediate month control wheel 42 meshes in the plane F with the program wheel of the months 43, while the intermediate date wheel 15 meshes in the plane D with the daily indexing mobile 13 '.
  • the intermediate wheels (intermediate wheel dates and intermediate control wheel months 42) rotate in a reverse direction of rotation relative to each other because the intermediate wheel dates 15 meshes directly with the date wheel 16 and therefore turns in a direction opposite to the latter, while the intermediate wheel months control 42 is driven by the monthly index finger 32 integral with the date wheel 16, by the intermediate mobile formed references 33, 41 and therefore rotates in the same direction as the date wheel 16.
  • the manual actuator 48 arranged on the housing 0.
  • the manual actuator for the adjustment of the days of week 48 is a pusher on which one acts by successive pressures, at most 11 to reach the desired month.
  • the adjustment mechanism 45 which makes it possible to transmit the pulses of the pusher to the program mobile of the months 43, has not been represented on the Figure 4B for questions of readability; such mechanisms are, however, known to those skilled in the art.
  • a rod could be used instead of a pusher as a manual actuator 48, in which case the rotation of the rod could cause the program wheel of the months 43 to rotate in both directions with a mechanism setting of the appropriate months.
  • the figure 5 shows a perspective view of the calendar mechanism according to the preferred embodiment of the invention illustrated by the various previous figures. From the hour wheel 1 in the middle of the figure, it is possible to discern the wheel train bringing the calendar wheel 13, through the 24 hour wheel 2 and the daily gear segment 11 of 7 teeth, which meshes with the indexing mobile 12.
  • the various teeth 28, 29, 30, 31 of the daily indexing wheel mesh in the respective planes E, B, C, D illustrated on the figures 3 and 4 with the pivoting retractable teeth 128, 129, 130 of the calendar program wheel 13 and the tooth 131 of the daily daily indexing wheel, in the plane D.
  • the gear pin of the 24-hour wheel 6, which rotates the star of the weekdays 7, and the elastic indexing element of the star of the weekdays 8 are, however, also hidden on this Fig.
  • the daily indexing mobile 13 ' On which are pivotally mounted the pivoting retractable teeth 128, 129 and 130, performs 1/31 of a turn.
  • the date mobile 16 is rotated at the same angle by means of the intermediate wheel of the dates 15.
  • the date display mechanism has not been shown for readability issues; it may however be noted that no elastic indexing element is useful at the periphery of the date wheel 16, since the movement of this wheel is always synchronous with that of the daily indexing mobile 13 ', itself indexed by the indexing elastic element 14 of the program wheel (hidden on the figure 5 ).
  • the gear train for the date display is not represented in its entirety on the figure 5 , since the respective display disks and the indexing elements (references 20-24, visible on the figure 3C ), and the monthly indexing tooth 32, coaxial and integral in rotation with the date wheel 16, is hidden below.
  • the monthly indexing mobile 33 which allows on the one hand to the control wheel months 41, with which it is integral in rotation, to actuate the rotation of the program wheel months 43, whose Toothing is barely visible under that of the daily indexing mobile 13 ', via the intermediate control wheel months 42, and which meshes with the gear wheel for the display of months.
  • the months program wheel 43 is rotationally integral with a cam of the months 44, which includes cam surfaces distributed on different gear planes.
  • the preferred embodiment of the invention uses cam surfaces. identical in the gear planes B and C for the month of February: indeed the first cam surface 441 in the angular sector 4402 (visible in detail on the Figures 6A and 6B ) in the gear plane C is totally hidden by the second cam surface 442 in the gear plane B.
  • the intermediate indexing wheel 35 which meshes with an actuating wheel for displaying the months 36, hidden beneath the monthly indexing tooth 37 with which it is coaxial and integral in rotation.
  • the monthly indexing tooth 37 performs a complete revolution in one year and meshes with the operating mobile of the display of the leap years 38, coaxial and fixed in rotation with an intermediate wheel leap years 39, which meshes with the wheel displaying leap years 40 of equal number of teeth.
  • the display wheel leap years 40 is arranged coaxial with the mobile operation of the display months to allow better readability to the user of the watch.
  • the Figure 6A illustrates the different indexing sequences for the pivotable retractable teeth 128, 129, and 130 with the respective teeth 28, 29, 30 of the daily indexing wheel 12, on their respective gear planes for a perpetual calendar mechanism according to the preferred embodiment illustrated in the figures during a February 28 of a non-leap year.
  • the calendar mechanism must catch up to 3 date values, which it does by means of each of the 3 pivoting retractable teeth 128, 129, 130 in their respective gear plane E, B and C with the indexing teeth 28, 29, and 30 of the daily indexing wheel 12.
  • the upper figure shows the daily indexing segment 11 and the position of the different indexing teeth 28, 29, 30, 31 February 28 at 20 hours.
  • the tooth 28 of the daily indexing wheel 12 meshes with the pivoting retractable tooth 128, pivotally mounted about an axis of rotation 128 'integral with the daily indexing mobile 13'.
  • the axis of rotation 128 'of the pivoting retractable tooth 128 is located slightly behind the 25th indexing mobile tooth daily 13 ', referenced 25'.
  • the pivoting retractable tooth 128 is brought into active position 128A from the passage of the 27 th to 28 th calendar of this month by the cam leap years 46, integral with the Maltese cross 46 ', indexed once a year via the fixed indexing finger of the leap years 47, itself secured to a fixed wheel 47.
  • the fixed wheel 47 is coaxial with the program wheel of the months 43 and the program wheel of the dates 13 '.
  • the elastic indexing element of the calendar program wheel 14 makes it possible to index the rotation of the daily indexing device 13 ', which then meshes with the date display gear (see references 15 to 24 illustrated on FIG. the other figures), in steps of exactly 1/31 e of turn in the direction S1, while a first elastic repositioning element 1282, which cooperates with a first pin 1281 affixed to the pivoting retractable tooth 128 allows to replace this tooth after indexing and keep it in the lowered position at rest.
  • the cam of the months 44 is divided into twelve equal angular sectors, each corresponding to one month, and referenced respectively from 4401 for the month of January to 4412 for the month of December.
  • the cam surface of the leap years 461 of the leap years cam 46 is identical, in the gear plane E, to the cam surface of the months of less than 31 days 441 in the plane C, visible in FIG. next low, and the cam surface of the months of February 442, visible in the figure of the next middle.
  • the cam 44 months corresponding to the angular sector referenced 4402
  • it is according to a top view of the cam 44 months from the plane B all cam surfaces raised 441, 442 and 461 are superimposed.
  • This arrangement facilitates both the machining and assembly of the constituent parts of the program wheel months 43, since it is sufficient to check the alignment of these different cam surfaces to ensure the proper operation of the actuation of each pivoting retractable teeth 128, 129 and 130.
  • FIG. 6A a second illustration showing a sectional view of the program wheels of the dates 13 and the months 43 in another gear plane, B, in which the tooth 29 of the daily indexing wheel 12 meshes with the tooth retractable pivoting 129 of the date program wheel 13, pivotally mounted about its axis of rotation 129 ', integral with the daily indexing mobile 13'.
  • the axis of rotation 129 'of the pivoting retractable tooth 129 is located slightly away from the movable tooth 26 th daily indexing 13' is referenced 26 '.
  • the cam surface 442 of the month cam 44 for the month of February is identical to the cam surface 441 of the months cam for the same month of February.
  • the elastic indexing the calendars 14 program wheel member for indexing the rotation of the mobile daily indexing 13 'again at exactly 1/31 of a turn in the direction S1.
  • a second elastic repositioning element 1292 which cooperates with a second lug 1291 affixed to the pivoting retractable tooth 129, allows to replace the tooth after indexing and keep it in the lowered position at rest.
  • a third resilient repositioning element 1302 which cooperates with a third pin 1301 affixed to the pivotable retractable tooth 130, allows to replace the tooth after indexing and keep it in the lowered position at rest.
  • the elastic indexing element of the calendar program wheel 14 makes it possible to index the rotation of the daily indexing device 13 'again in steps of exactly 1/31 e of revolution in the direction of rotation S1 for this last catch-up indexation.
  • all the pivotable retractable teeth 128, 129, 130 preferably have an identical geometric shape, which considerably simplifies the manufacture of the calendar program wheel 13, on the one hand, and the manufacture of spare parts for retractable teeth , which do not require the machining of dedicated elements for each type of date adjustment.
  • the simple and homogeneous geometrical shape for each of the pivoting retractable teeth 128, 129, 130 allows the use of equally homogeneous cam surfaces, as already discussed previously, in each catch indexing plane (B, C, E) of such that these teeth are superimposed on the external toothing of the daily indexing mobile 13 'in the active position 128A, 129A, 130A.
  • the complexity of the whole proposed timing mechanism is greatly reduced compared to the usual mechanisms.
  • the Figure 6B illustrates the last indexing sequence of the month, which follows the three catch-up indexations of the Figure 6A previous for February 28 of a non-leap year, but which also occurs every other day of the year from 11 pm to midnight. There is the same S arrow down, indicating the direction of the sequence of indexing, as in the previous figure for the last indexing of the month.
  • the pins 1281, 1291 and 1301 as well as the elastic elements 1282, 1292 and 1302 are also shown in this figure, unlike the figure 5 previous, where they have not been illustrated for readability, and at the figure 3B where only the lugs are represented.
  • the first illustration at the top of the Figure 6B shows a sectional view of the program wheels of the dates 13 and months 43 according to a fourth gear plane, D, located just below the plane C according to the preferred variant illustrated in particular on the figures 3 and 4 and in which the tooth 31 of the daily indexing wheel 12 meshes with a tooth 131 of the daily indexing mobile 13 '.
  • This sequence takes place at 23 o'clock, while the 24-hour wheel 2 has further shifted the daily gear segment of the 24-hour wheel 11 from a tooth compared to the bottom illustration of the Figure 6A previous, and caused the rotation of the daily indexing wheel 12 one eighth of a turn to mesh on the tooth 31, consecutive to the tooth 30 on the daily indexing wheel 12.
  • the illustration at the bottom of the Figure 6B shows a top view of the program wheel 13 and the cam 44 months, with the view of the elements located between the first gear plane A between the daily gear segment 11 and the daily indexing wheel 12 until 'to the fixed wheel 47' and the indexing finger of the leap years 47 below the gear plane E.
  • the elastic elements 1282, 1292 and 1302 cooperating with respectively with the pins 1281, 1291, 1301 pivoting retractable teeth 128, 129 and 130 maintain the latter in the inactive position.
  • the daily indexing wheel 12 contains 8 teeth in the gear plane A with the daily gear segment 11, it contains only 4 teeth in the planes.
  • the daily indexing mobile 13 will therefore no longer be operated in rotation past that time; however, the control gear (references 15, 16, 32, 33, 41, 42) previously described, in particular using the Figure 4B , Yet will index the month moving part 43 secured to the month cam 44, a twelfth of a revolution in the direction S2 opposite to the direction S1 during each passage 31 e to 1 calendar of the next month.
  • the control gear references 15, 16, 32, 33, 41, 42
  • a second indexing tooth meshes in the plane F with a month control wheel 41 which is not integral in rotation with the monthly indexing wheel 33, so that this tooth can be shifted angularly by a few calendars values, for example between the 10 th and 20 th calendar of the month, and thus indexing month program of the mobile does not take place simultaneously with that of the displaying the current month so as not to require a very large torque for simultaneous indexing at the end of the month while ensuring the proper positioning of the schedule mobile 43 when the retractable teeth must be placed in the active position, that is to say say long enough before the last calendar of the month.
  • the daily indexing wheel 12 which will have performed a complete revolution after gearing with the 7 teeth of the toothed gear segment 11, will be held in position until the next gear of this same toothed sector by the surface of the sector. not toothed 11 ', visible on all the illustrations of Figures 6A and 6B , which blocks it in rotation.
  • the reliability of the gear proposed by the calendar mechanism according to the invention is improved over mechanisms using complex cam surfaces and / or motions with several components in translation for retractable teeth due to the fact that the position of the pivoting retractable teeth 128, 129, and 130 is determined only by their degree of freedom in rotation that each has its respective axis of rotation 128 ', 129', and 130 '.
  • the cam surfaces for the different catching indexings to be made thus do not need to be sophisticated to move the pivoting retractable teeth 128, 129, 130 into their active positions 128A, 129A, 130A, the difference in height between the different angular sectors 4401-4412 of the cam of the months 44 simply determining their angular travel during their change of state, ie from the inactive position to the inactive position and vice versa.
  • This height is chosen such that each of the pivoting retractable teeth are superimposed, in their respective gear plane, the teeth of the daily indexing mobile 13 'when in the active position 128A, 129A, 130A.
  • the catch of missing dates at the end of the month less than 31 days is performed by the calendar mechanism according to the invention in a range of 4 hours at most, namely from 20 to 24 hours, sequentially every hour.
  • All pivoting retractable teeth are driven by the same clockwork wheel, and more exactly the same piece (ie the daily indexing wheel 12), so that there is no need for a gear train dedicated for each correction, which simplifies the construction of the proposed timing mechanism compared to conventional mechanisms.
  • the number of teeth of the daily indexing wheel 12, set at 8 according to the preferred embodiment chosen, has been chosen to make a rotation of an angle sufficient to index the date program wheel 13, comprising the wheel of daily indexing 13 'and pivotable retractable teeth 128, 129, 130 on which they are mounted, of a 31 st turn, with an adequate gear depth.
  • the fact that the daily indexing wheel 12 makes exactly one complete revolution each day makes it possible to repeat a similar movement starting from the same position in daily cycles.
  • Disassociating the gear planes B, C, E for all catch-ups at the end of the month and that of the daily indexing D allows a modular replacement, preferably a gear plane by gear plane, for each of the pieces of gear. the calendar program wheel 13 and the daily indexing wheel 12.
  • the calendar mechanism makes it possible to always synchronize the display of the date with respect to the movement, and this in both directions, so that a time adjustment, conventionally by actuation in rotation of a ring arranged on the housing 0, will be transmitted to the hour wheel 1 and therefore to the calendar mechanism.
  • This can be advantageous when traveling to a destination where the time zone is later than the region of origin, for example the west coast of the United States, at -9 hours from Europe.
  • the user of a watch equipped with a calendar mechanism according to the invention will simply need to set the time of his watch at -9h so that the date is automatically adjusted in the opposite direction, for example from March 1 st to 28 or 29 February, without requiring any manipulation of dedicated date setting.
  • the use of the watch is only made more convenient compared to the watches provided with a usual calendar mechanism, for which no synchronization is provided with the movement during a setting in the opposite direction of the march .

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
EP11154850.9A 2011-02-17 2011-02-17 Datumsmechanismus Active EP2490084B1 (de)

Priority Applications (8)

Application Number Priority Date Filing Date Title
CH00274/11A CH704505A2 (fr) 2011-02-17 2011-02-17 Mécanisme de calendrier.
EP11154850.9A EP2490084B1 (de) 2011-02-17 2011-02-17 Datumsmechanismus
US13/396,994 US8842500B2 (en) 2011-02-17 2012-02-15 Calendar mechanism
RU2012105510/12A RU2590875C2 (ru) 2011-02-17 2012-02-16 Механизм календаря
KR1020120015807A KR101369081B1 (ko) 2011-02-17 2012-02-16 캘린더 메커니즘
CN201210037675.4A CN102645884B (zh) 2011-02-17 2012-02-17 日历机构
JP2012032531A JP5559828B2 (ja) 2011-02-17 2012-02-17 カレンダ機構
HK13101751.2A HK1174979A1 (en) 2011-02-17 2013-02-07 Calendar mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11154850.9A EP2490084B1 (de) 2011-02-17 2011-02-17 Datumsmechanismus

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EP2490084A1 true EP2490084A1 (de) 2012-08-22
EP2490084B1 EP2490084B1 (de) 2016-07-20

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JP (1) JP5559828B2 (de)
KR (1) KR101369081B1 (de)
CN (1) CN102645884B (de)
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WO2013068519A1 (fr) 2011-11-11 2013-05-16 Gfpi S.A. Mecanisme d'entrainement d'un indicateur
CH711749A1 (fr) * 2015-11-13 2017-05-15 Gfpi Sa Mécanisme de calendrier pour pièce d'horlogerie.
CH715119A1 (fr) * 2018-06-22 2019-12-30 Montblanc Montre Sa Mécanisme de quantième perpétuel pour pièce d'horlogerie.
CH715471A1 (fr) * 2018-10-25 2020-04-30 Lvmh Swiss Mft Sa Mécanisme horloger pour quantième perpétuel.
EP3764171A1 (de) 2019-07-11 2021-01-13 Manufacture et fabrique de montres et chronomètres, Ulysse Nardin Le Locle S.A. Anzeigemechanismus eines uhranzeigewerts
EP4033306A1 (de) 2021-01-22 2022-07-27 Patek Philippe SA Genève Jahres- oder dauerkalendermechanismus

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EP2985660B1 (de) * 2014-08-14 2019-05-22 Montres Tudor S.A. Uhranzeigevorrichtung einer Uhrzeitanzeige oder eines abgeleiteten Uhrzeitwerts
EP3009893B1 (de) * 2014-10-13 2017-11-29 Montres Breguet SA Ewiger Kalender mit Ausgleichsgetriebe
EP3026505B1 (de) * 2014-11-27 2017-09-27 Société anonyme de la Manufacture d'Horlogerie Audemars Piguet & Cie Uhrmechanismus eines Jahres- oder ewigen Kalenders, und Uhr, die eine solche Anwendung umfasst
JP6788345B2 (ja) * 2015-01-12 2020-11-25 ロレックス・ソシエテ・アノニムＲｏｌｅｘ Ｓａ 時計カレンダー機構のモバイルを駆動する装置
CH711049A1 (de) * 2015-05-08 2016-11-15 Bucherer Ag Jahreskalender für mechanische Uhren.
EP3173876B1 (de) * 2015-11-26 2020-09-02 Rolex Sa Kalendersystem für uhr
EP3173877B1 (de) 2015-11-26 2019-10-16 Rolex Sa Kalendersystem für uhr
EP3173878B1 (de) 2015-11-26 2021-05-26 Rolex Sa Kalendersystem für uhr
DE102016111463B3 (de) * 2016-06-22 2017-08-31 Lange Uhren Gmbh Fortschalteinrichtung einer Uhr
EP3627239B1 (de) * 2016-07-05 2024-04-17 Montres Breguet S.A. Walzenanzeigemechanismus für armbanduhr
EP3339973B1 (de) * 2016-12-21 2019-07-24 Blancpain SA Datumsmechanismus
US11550265B2 (en) * 2017-11-02 2023-01-10 Rolex Sa Drive device for horology calendar system
EP3667435B1 (de) * 2018-12-10 2022-06-01 Montres Breguet S.A. Einstellsystem der position eines ersten gezahnten drehteils in bezug auf eine halterung, auf der dieser ersten gezahnten drehteil drehbar befestigt ist, und uhr, die ein solches system umfasst
EP3696617B1 (de) * 2019-02-14 2023-07-05 Glashütter Uhrenbetrieb GmbH Monats- und schaltjahr-anzeigemechanismus für uhr
IT201900004735A1 (it) * 2019-03-29 2020-09-29 La Vallee S R L Dispositivo indicatore per orologeria

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Publication number Priority date Publication date Assignee Title
WO2013068519A1 (fr) 2011-11-11 2013-05-16 Gfpi S.A. Mecanisme d'entrainement d'un indicateur
US9081368B2 (en) 2011-11-11 2015-07-14 Gfpi S.A. Mechanism for driving an indicator
CH711749A1 (fr) * 2015-11-13 2017-05-15 Gfpi Sa Mécanisme de calendrier pour pièce d'horlogerie.
WO2017081231A1 (fr) * 2015-11-13 2017-05-18 Gfpi S.A. Mecanisme de calendrier pour piece d'horlogerie
US11169486B2 (en) 2015-11-13 2021-11-09 Gfpi S.A. Calendar mechanism for a timepiece
CH715119A1 (fr) * 2018-06-22 2019-12-30 Montblanc Montre Sa Mécanisme de quantième perpétuel pour pièce d'horlogerie.
EP3588201A1 (de) 2018-06-22 2020-01-01 Montblanc Montre SA Jahreskalendermechanismus für uhrwerk
CH715471A1 (fr) * 2018-10-25 2020-04-30 Lvmh Swiss Mft Sa Mécanisme horloger pour quantième perpétuel.
EP3764171A1 (de) 2019-07-11 2021-01-13 Manufacture et fabrique de montres et chronomètres, Ulysse Nardin Le Locle S.A. Anzeigemechanismus eines uhranzeigewerts
CH716399A1 (fr) * 2019-07-11 2021-01-15 Mft Et Fabrique De Montres Et Chronometres Ulysse Nardin Le Locle S A Mécanisme d'affichage d'une valeur horlogère, en particulier du quantième.
EP4033306A1 (de) 2021-01-22 2022-07-27 Patek Philippe SA Genève Jahres- oder dauerkalendermechanismus

Also Published As

Publication number Publication date
HK1174979A1 (en) 2013-06-21
CH704505A2 (fr) 2012-08-31
KR101369081B1 (ko) 2014-02-28
RU2012105510A (ru) 2013-08-27
US20120213038A1 (en) 2012-08-23
CN102645884A (zh) 2012-08-22
US8842500B2 (en) 2014-09-23
CN102645884B (zh) 2015-01-21
KR20120094863A (ko) 2012-08-27
EP2490084B1 (de) 2016-07-20
JP5559828B2 (ja) 2014-07-23
JP2012173292A (ja) 2012-09-10
RU2590875C2 (ru) 2016-07-10

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